Update remark parse v8

[sarayourfriend]

I had previously opened another branch for this, but noticed that @fisker had already done a good deal of work to resolve some of the issues with upgrading remark-parse, so based my branch off of theirs.

• I’ve added tests to confirm my change works.
• (If changing the API or CLI) I’ve documented the changes I’ve made (in the docs/ directory)
• (If the change is user-facing) I’ve added my changes to changelog_unreleased/*/pr-XXXX.md file following changelog_unreleased/TEMPLATE.md.
• I’ve read the contributing guidelines.

✨Try the playground for this PR✨

Or try this branch locally: npm install saramarcondes/prettier#update-remark-parse-v8

[fisker]

Thanks for taking this over, hope you can make it work. Some markdown and css related deps are really old, very hard to update.

[sarayourfriend]

This change matches the expectation in the commonmark spec: https://spec.commonmark.org/dingus/?text=%5Bfoo%5D%20%5Bbar%5D%0A%0A%5Bbar%5D%3A%20%2Furl%20%22title%22%0A

[an example] and [id] appear as two separate shortcut reference links with a text node between them: https://astexplorer.net/#/gist/d69f5a227e2cbde3f43f0a639bee165c/822b531c252c162faba78e38607db73ef72886d5

Previously they would have appeared as a single full reference style link.

[thorn0]

Will this also fix #8226 probably?

[sarayourfriend]

It sure does! I just pushed an update to include shortcut style links in this test case. I'll add another test case for that issue.

[thorn0]

Thanks. I'm linking that issue to this PR then.

[sarayourfriend]

@thorn0 This PR will also address these issues if you'd like to link them

#4369
#7695
#6177

[thorn0]

The tests directory has been reorganized (#8239 and other PRs). Please rebase.

[thorn0]

I'll do today.

[fisker]

#4122 is fixed, need test

[sosukesuzuki]

Thank you for your great work!

[thorn0]

To do after merging: #8630

[alexander-akait]

Great work! Thanks!